Cram Flashcards

https://www.youtube.com/watch?v=3rN5JZdu9-Y&t=3221s

1
Q

In the following typology how is it physically and logically structured:
Bus

A

Physical: Bus
Logical: Bus

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2
Q

In the following typology how is it physically and logically structured:
Star

A

Physical: Star
Logical: Bus

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3
Q

In the following typology how is it physically and logically structured:
Token Ring

A

Physical: Bus
Logical: Ring

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4
Q

In the following typology how is it physically and logically structured:
Point-to-Point

A

Physical: Bus
Logical: Bus

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5
Q

In the following typology how is it physically and logically structured:
FDDI

A

Physical: Ring
Logical: Ring

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6
Q

Can track the number of connections to a web server to understand what is typical

A

stateful firewall

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7
Q

Doesn’t have the enhanced capability to make decisions based on historical data. Watch real-time network traffic and block based on static values

A

stateless firewall

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8
Q

How does wireless networking handle collisions

A

CSMA/CD:

carrier sense multiple access with collision avoidance

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9
Q

WLC

A

Wireless LAN Controller

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10
Q

List OSI from top to bottom

A
  1. Application
  2. Presentation
  3. Session
  4. Transport
  5. Network
  6. Data Link
  7. Physical
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11
Q

Application layer PDU (Protocol Data Unit)

A

Data

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12
Q

Presentation layer PDU (Protocol Data Unit)

A

Data

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13
Q

Session layer PSU (Protocol Data Unit)

A

Data

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14
Q

Transport layer PSU (Protocol Data Unit)

A

Segment

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15
Q

Network layer PSU (Protocol Data Unit)

A

Packet

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16
Q

Data Link PSU (Protocol Data Unit)

A

Frame

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17
Q

Physical PSU (Protocol Data Unit)

A

Bits

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18
Q

Application layer example

A

e-mail

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19
Q

Presentation layer example

A

mp3, mp4

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20
Q

Session layer example

A

SQL, NFS

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21
Q

Transport layer example

A

TCP/UDP

22
Q

Network layer example

A

IP/RIP

23
Q

Data link layer example

A

Frame relay

24
Q

Physical layer example

A

cables & devices

25
Q

TCP layers

A
  1. Application
  2. Transport
  3. Network
  4. Data link
  5. Physical
26
Q

Port #: 20

A

FTP data

27
Q

Port #: 21

A

FTP control

28
Q

Port #: 22

A

SSH

29
Q

Port #: 23

A

Telnet

30
Q

Port #: 25

A

SMTP

31
Q

Port #: 53

A

DNS

32
Q

Port #: 69

A

TFTP

33
Q

Port #: 80

A

HTTP

34
Q

Port #: 110

A

POP3

35
Q

Port #: 119

A

NNTP

36
Q

Port #: 123

A

NTP

37
Q

Port #: 143

A

IMAP

38
Q

Port #: 161/162

A

SNMP

39
Q

Port #: 443

A

HTTPS

40
Q

Cisco Networking Model:

Core Layer purpose

A

to switch traffic as quickly as possible. No packet manipulation, VLANs, assess-lists

41
Q

Cisco Networking Model:

Distribution Layer purpose

A

time sensitive manipulation. ie. routing, filtering, WAN access. Broadcast/multicast, security

42
Q

Cisco Networking Model:

Access layer purpose

A

switches and routers, segmentation occurs here and workgroup access. Static routing

43
Q

Router>

A

User exec

44
Q

Router#

A

Privileged exec

45
Q

Router(config)#

A

Global config

46
Q

rommon>

A

ROM monitor (passwd recovery)

47
Q

Router

A

RXboot

48
Q

Cisco Discovery Protocol (CDP)

A

gathers info about nearby connected devices

49
Q

turn off cdp on entire router

A

(config)# no cdp run

50
Q

Link layer Discovery Protocol (LLDP)

A

Open standard under IEEE Standard 802.1AB. Disabled by default

51
Q

LAN switch

A

show man-address-table